Offshore photovoltaic cable centralized laying device

Abstract

The utility model provides an offshore photovoltaic cable centralized laying device, and relates to the field of offshore photovoltaic technologies. According to the device, a main body part is arranged at the front edge of a wharf and extends in the first direction, and the first direction is the extension direction of a coastline; the main body part comprises at least one first frame body and at least one box body, the box body is stacked on the first frame body, the bottom surface of the box body is provided with a first channel, the top surface of the first frame body is provided with a second channel, the submarine cable is laid in the first frame body and extends into the box body through the second channel and the first channel, and the land cable is arranged in the box body in a penetrating manner; wherein the projections of the first channel and the second channel on the horizontal plane are at least partially overlapped, and the submarine cable is used for connecting a photovoltaic module; and the conversion joint is arranged in the box body, and the land cable and the submarine cable are connected through the conversion joint. The device can realize reliable connection of offshore photovoltaic sea-land cables, is compact in structure, and facilitates maintenance and management of the sea-land cables.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of offshore photovoltaic technology, in particular, to an offshore photovoltaic cable centralized laying device. BACKGROUND

[0002] Photovoltaic is a power generation system that converts solar radiation energy into electrical energy by using the photovoltaic effect of semiconductor materials. Photovoltaic energy comes from solar energy, which is a clean, safe and renewable energy source. Therefore, photovoltaic power generation has good application prospects. Since China has vast sea areas, the development of marine resources is still insufficient. Combining marine resources with photovoltaic power generation is a potential resource project.

[0003] Offshore photovoltaic is to lay photovoltaic components on the sea, convert solar energy into electrical energy through offshore photovoltaic, and transmit the electrical energy to the user end through the cable. However, the cable used in offshore photovoltaic is different from the cable used in land photovoltaic. The offshore photovoltaic cable includes a land section and a sea section. Due to the influence of environmental factors on the sea, the sea cable needs to be laid on the sea section, and the land cable can be laid on the land section to meet the structural requirements of offshore photovoltaic. The sea cable and the land cable need to be connected. At present, the conversion of sea and land cables is usually directly connected by a connection joint, but this method is not conducive to the compact layout of sea and land cables, and the connection reliability of sea and land cables is poor.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE INVENTION

[0005] Therefore, an offshore photovoltaic cable centralized laying device is provided. The device controls the arrangement structure of the offshore photovoltaic sea and land cables, improves the connection reliability and convenience between the offshore photovoltaic sea and land cables, and provides a basis for subsequent maintenance and management of the sea cable.

[0006] Other characteristics and advantages of the present disclosure will become apparent from the following detailed description, or will be learned by practice of the present disclosure.

[0007] According to one aspect of the present disclosure, an offshore photovoltaic cable centralized laying device is provided, the offshore photovoltaic including photovoltaic components, the device comprising:

[0008] a main body part, the main body part being arranged at the front edge of the wharf, and the main body part extending along a first direction, the first direction being the extension direction of the coastline;

[0009] The main body part comprises at least one first frame and at least one box, the box is stacked on the first frame, the bottom surface of the box has a first channel, the top surface of the first frame has a second channel, the submarine cable is laid in the interior of the first frame and extends to the interior of the box through the second channel and the first channel, and the land cable is arranged in the interior of the box; wherein the projection of the first channel and the second channel on the horizontal plane at least partially overlaps, and the submarine cable is used for connecting the photovoltaic module.

[0010] The conversion joint is arranged in the interior of the box, and the land cable and the submarine cable are connected through the conversion joint.

[0011] In an exemplary embodiment of the present disclosure, the number of the first frames is the same as that of the boxes, and the first frames and the boxes are arranged one by one.

[0012] In an exemplary embodiment of the present disclosure, the number of the submarine cables is the same as that of the first frames, and the first frames and the submarine cables are arranged one by one.

[0013] In an exemplary embodiment of the present disclosure, the device further comprises a second frame arranged on the side of the main body part; the number of the second frames and the first frames is the same as that of the boxes, and the top surface of the second frame is provided with a third channel, the submarine cable is laid in the interior of the second frame and extends to the interior of the box through the first channel and the third channel.

[0014] In an exemplary embodiment of the present disclosure, the number of the first frames and the second frames is the same as that of the submarine cables, the first frames and the submarine cables are arranged one by one, and the second frames and the submarine cables are arranged one by one.

[0015] In an exemplary embodiment of the present disclosure, the number of the first frames is different from that of the boxes, and one first frame corresponds to at least two boxes.

[0016] In an exemplary embodiment of the present disclosure, the number of the submarine cables is the same as that of the boxes, and the submarine cables and the boxes are arranged one by one.

[0017] In an exemplary embodiment of the present disclosure, when the number of the boxes is multiple, the multiple boxes are arranged side by side along the first direction, and adjacent two boxes are arranged in close contact with each other.

[0018] In an exemplary embodiment of the present disclosure, when the number of the boxes is multiple, the multiple boxes are arranged side by side along the first direction, and adjacent two boxes are arranged in close contact with each other.

[0019] In an exemplary embodiment of the present disclosure, the device further comprises a fixing structure arranged between the main body and the coastline, the fixing structure comprising a main body and a plurality of fixing channels arranged perpendicular to the first direction, each of the fixing channels penetrating the main body, the fixing channels being arranged one-to-one with the submarine cables, the submarine cables extending into the first frame through the fixing channels and being fixed in the fixing channels.

[0020] The offshore photovoltaic cable centralized laying device provided by the present disclosure realizes the arrangement of the submarine and land cables for controlling the offshore photovoltaic, so as to improve the reliable switching of the submarine and land cables. The structure layout of the submarine and land cables laid in the device is compact, which is suitable for offshore photovoltaic and facilitates the subsequent same management and maintenance of the submarine and land cables, thereby improving the convenience.

[0021] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings incorporated in the specification and constituting a part of it illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0023] Figure 1 FIG. 1 is a partial structural schematic diagram of an offshore photovoltaic cable centralized laying device in an exemplary embodiment of the present disclosure.

[0024] Figure 2 FIG. 2 is a front view of the offshore photovoltaic cable centralized laying device shown in the embodiment. Figure 1

[0025] Figure 3 FIG. 4 is a schematic diagram of the position relationship between the main body and the submarine cable laying in an exemplary embodiment of the present disclosure.

[0026] Figure 4 FIG. 5 is another schematic diagram of the position relationship between the main body and the submarine cable laying in an exemplary embodiment of the present disclosure.

[0027] Figure 5 FIG. 6 is a schematic diagram of the position relationship between the third frame and the box in an exemplary embodiment of the present disclosure. ​

[0028] Figure 6 A schematic view of a positional relationship between a first passage and a second passage or a third passage in an exemplary embodiment of the present disclosure.

[0029] Figure 7 A schematic view of a positional relationship between a first passage and a second passage or a third passage in another exemplary embodiment of the present disclosure.

[0030] In the drawings:

[0031] 10, main body; 11, first frame; 12, box; 101, first passage; 102, second passage; 13, second frame; 103, third passage; 20, fixing structure; 201, fixing passage; 100, submarine cable; X, first direction. DETAILED DESCRIPTION

[0032] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept of an example implementation to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and description of the same or like elements can be omitted. In addition, the drawings are to be considered in the illustrative mode, and not to be considered to be limiting.

[0033] Although relative terms such as "upper", "lower", etc. are used herein to describe one component's relationship to another component of a figure, such terminology is used herein for convenience only and is not limiting of an implementation to that particular orientation. It is to be understood that the implementations can be inverted in which a figure's device is turned upside down, and the described "upper" component would then be a "lower" component. When a structure is "on" or "under" another structure, it can mean that the structure is formed integrally with the other structure or that the structure is "directly" on or under the other structure, or that the structure is "indirectly" on or under the other structure via another structure.

[0034] The terms "one", "a", "an", "the", and "at least one" are used to mean that "one or more" of something is present; the term "or" is used to mean "and / or" both; the term "including" is used to mean "including without limitation"; and the term "including" is used interchangeably with the term "comprising". The term "first", "second", and "third" are used only as labels, and do not imply a limitation as to the number of components. The use of "a" or "an" herein should not be construed in the exclusive sense, but rather in the inclusive sense.

[0035] In the related art, offshore photovoltaic includes a photovoltaic assembly, and the photovoltaic assembly includes a photovoltaic panel, which can convert solar energy into electric energy. Due to the high corrosiveness of the sea and other factors, a submarine cable is used to connect the photovoltaic assembly, which needs to adapt to the offshore environment. The submarine cable must have good water resistance and mechanical properties, and also needs to have the ability to resist corrosion and marine organisms to ensure that the service life meets the engineering requirements. In addition, the submarine cable needs special water resistance structure design, such as longitudinal water resistance structure and radial water resistance structure, to resist corrosion and water pressure. Therefore, the structure of the submarine cable is relatively complex, and the economic cost is also relatively high. The land cable is mainly used in the construction of the power transmission and distribution network in the land power system, and the environment around the land cable is relatively dry, so the requirements for fire resistance, flame resistance, weather resistance and other properties are relatively high to ensure the safety of power transmission.

[0036] Since the electric energy generated by the offshore photovoltaic can be transmitted to the land user end, the submarine cable is no longer suitable for the land environment, so the conversion between the submarine cable and the land cable needs to be carried out in the offshore photovoltaic. Since the offshore photovoltaic project is relatively large, a large number of submarine cables and land cables are used. On the one hand, the connection reliability between the submarine cable and the land cable needs to be improved, and on the other hand, the layout direction of the subsequent multiple submarine cables and land cables needs to be ensured to meet the subsequent operation and maintenance requirements.

[0037] It should be noted that, in addition to the photovoltaic panel, the photovoltaic assembly in the offshore photovoltaic provided by the present disclosure also has other necessary structures or components for assisting the offshore photovoltaic power generation, although it is not mentioned in the present disclosure, but it should be understood that the photovoltaic assembly provided by the present disclosure includes the necessary structures or components for realizing the connection with the submarine cable and realizing the functions of electric energy conversion and electric energy output.

[0038] Based on this, the present disclosure provides a kind of offshore photovoltaic cable centralized laying device, as shown in Figure 1 As shown in Figures 2 to 4 The device is used in offshore photovoltaic, and the offshore photovoltaic includes a photovoltaic assembly, and the device includes a main body 10 and a conversion connector.

[0039] The main body 10 is arranged in front of the wharf, and the main body 10 extends along the first direction X, and the first direction X is the extension direction of the coastline; the main body 10 includes at least one first frame body 11 and at least one box body 12, the box body 12 is stacked on the first frame body 11, the bottom surface of the box body 12 has a first channel 101, the top surface of the first frame body 11 has a second channel 102, the submarine cable 100 is laid in the interior of the first frame body 11, and extends to the interior of the box body 12 through the second channel 102 and the first channel 101, and the land cable is arranged in the interior of the box body 12; wherein the projection of the first channel 101 and the second channel 102 on the horizontal plane at least partially overlaps, and the submarine cable 100 is used to connect the photovoltaic assembly; the conversion connector is arranged in the interior of the box body 12, and the land cable and the submarine cable 100 are connected through the conversion connector.

[0040] The offshore photovoltaic cable centralized laying device provided by the present disclosure is characterized in that the cable 100 is laid in the first frame 11 through the stacking of the box 12 and the first frame 11 in the main body 10, and the cable 100 is extended to the inside of the box 12 through the first channel 101 and the second channel 102, and is connected with the land cable in the box 12, so as to control the layout of the offshore and land cables of the offshore photovoltaic device, and improve the reliable switching of the offshore and land cables. The structure of the offshore and land cables laid in the device is compact, suitable for offshore photovoltaic, and convenient for subsequent management and maintenance of the offshore and land cables, and improves the convenience.

[0041] The various parts of the offshore photovoltaic cable centralized laying device provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings:

[0042] In the embodiments provided by the present disclosure, as shown in Figure 1 and Figure 2 The device comprises a main body 10, which is arranged at the front of the wharf, and the main body 10 extends along a first direction X, which is the extension direction of the coastline. Since the offshore photovoltaic device is usually arranged in the offshore area, it is convenient to lay the offshore photovoltaic device on the sea and to transmit the electric energy from the offshore photovoltaic device to the power device arranged on the land. Therefore, the wharf is usually used as a transfer station. For example, the front of the wharf can be provided with tools for installing and laying the cable 100, so that the cable 100 can be laid from the wharf to the offshore photovoltaic device. Therefore, in order to facilitate the management of the cable 100 and take advantage of the location, the main body 10 can be arranged at the front of the wharf. In addition, in order to facilitate the layout of the cable 100 after landing, the arrangement direction of the main body 10 can be the extension direction of the coastline, so as to facilitate the landing of the cable 100 and make the cable 100 switch at the nearest distance.

[0043] The main body 10 comprises at least one box 12 and at least one first frame 11, and the box 12 is stacked on the first frame 11.

[0044] The land cable is arranged in the inside of the box 12. The box 12 can be a hollow structure in the shape of a cuboid, a cube or the like, which can be made of a metal material, such as copper, aluminum, stainless steel or the like. For example, the box 12 can be made of an aluminum alloy plate, so that the box 12 has good protection and heat dissipation capacity, and protects the land cable arranged therein and avoids the accumulation of heat to damage the land cable. In addition, the box 12 can be a detachable structure, which is convenient for disassembly and assembly. In order to improve the structural strength of the box 12, the box 12 can also be made of an integral forming structure. The box 12 can be a closed structure, and the box 12 has a box door, which is convenient for maintenance of the land cable and installation and debugging of other components in the box 12.

[0045] Taking the box 12 as a hollow cuboid as an example, the width of the box 12 can be 6m-12m, the height can be 10m-18m, and the depth can be 4m-8m. The specific size and structure of the box 12 can be selected and adaptively adjusted according to the actual structural design requirements. For example, the height of the box 12 can be greater than the width, so that the shape and size of the box 12 are more suitable for the laying of the land cable and the transition of the sea-land cable.

[0046] When the number of boxes 12 is multiple, the multiple boxes 12 can adopt the same size for easy manufacturing and installation; the multiple boxes 12 can also adopt different sizes according to actual use requirements, so that different boxes 12 are suitable for different use positions and sea-land cable types.

[0047] When the number of boxes 12 is multiple, as shown in Figure 1 In order to save space and improve the compactness of the structure, the multiple boxes 12 are arranged side by side along the first direction X, and the adjacent two boxes 12 are arranged in close contact with each other. For example, the adjacent two boxes 12 can share a side wall; for example, the two side walls of the adjacent two boxes 12 can be connected to each other, such as welding, riveting, bonding, etc.

[0048] Among them, the submarine cable 100 is arranged inside the first frame body 11, one end of the submarine cable 100 is used to connect the photovoltaic module, and the other end of the submarine cable 100 extends to the land and is connected with the land cable. The first frame body 11 can be in the same or similar shape as the outer shape of the box 12, but the side of the first frame body 11 facing the sea is a hollow structure, i.e. the first frame body 11 can be a semi-closed structure. Taking the outer shape of the first frame body 11 as a cuboid as an example, the width of the first frame body 11 can be greater than the height to adapt to the laying requirements of the submarine cable 100.

[0049] The first frame body 11 can be made of cement and other materials, and has good structural strength, which can provide support for the box 12 to meet the stacking requirements of the first frame body 11 and the box 12. When the first frame body 11 is multiple, the multiple first frame bodies 11 can be arranged separately, i.e. the adjacent two first frame bodies 11 are arranged with a spacing. Further, in order to improve the structural strength of the first frame body 11 and the compactness of the structure of the device, the multiple first frame bodies 11 are arranged side by side, and the adjacent two first frame bodies 11 are arranged in close contact with each other, for example, the adjacent two first frame bodies 11 can share a side, or the sides of the adjacent two first frame bodies 11 are connected to each other, such as bonding, steel stringing, etc.

[0050] The housing 12 is mounted on the first frame 11, with the bottom surface of the housing 12 abutting or in contact with the top surface of the first frame 11. The housing 12 is fixed to the first frame 11 by connecting the bottom surface of the housing 12 to the ground surface of the first frame 11. For example, the housing 12 and the first frame 11 can be connected by bolts, chemical adhesives, welding, or other methods.

[0051] The bottom surface of the enclosure 12 has a first channel 101, and the top surface of the first frame 11 has a second channel 102. The submarine cable 100 is laid inside the first frame 11 and extends into the enclosure 12 through the second channel 102 and the first channel 101. The projections of the first channel 101 and the second channel 102 on the horizontal plane at least partially overlap, that is, the first channel 101 and the second channel 102 are connected. After passing through the first frame 11, the second channel 102, and the first channel 101, the submarine cable 100 can extend into the enclosure 12.

[0052] The first channel 101 may be a through hole provided on the bottom surface of the housing 12; or the first channel 101 may be a channel provided in the bottom surface of the housing 12, with one end of the channel facing the interior of the housing 12 and the other end facing the second channel 102.

[0053] The second channel 102 can be a through hole provided on the top surface of the first frame 11, such as Figure 6 and Figure 7 As shown, the projections of the second channel 102 and the first channel 101 on the horizontal plane at least partially overlap; or the second channel 102 may be a channel disposed in the top surface of the first frame 11, with one port facing the interior of the first frame 11 and the other port facing the first channel 101.

[0054] The structures of the first channel 101 and the second channel 102 in the above embodiments can be combined in different ways, which will not be listed one by one here, but the above structures of the first channel 101 and the second channel 102 can all meet the conversion requirements of submarine and land cables.

[0055] In the embodiments provided in this disclosure, the device includes a conversion connector disposed inside the housing 12, through which the land cable and the submarine cable 100 are connected. After the submarine cable 100 extends from the seabed to the land via the offshore photovoltaic modules, it continues to extend into the first frame 11, and from the first frame 11 continues to extend into the housing 12 via the second channel 102 and the first channel 101, thereby completing the conversion connection between the land and submarine cables in the housing 12 through the conversion connector.

[0056] It should be noted that the inside of the box 12 can also be provided with a fixing structure 20 for fixing the conversion joint, and the box 12 also includes other structures or components for assisting the sea-land cable conversion connection. Although the present disclosure does not detail these auxiliary structures or components, it should be understood that the box 12 provided by the present disclosure includes these auxiliary structures or components.

[0057] In an embodiment provided by the present disclosure, as shown in Figure 3 The number of the first frame body 11 is the same as that of the box 12, and the first frame body 11 and the box 12 are arranged one by one. For example, the axis of the first frame body 11 coincides with that of the box 12, that is, one box 12 is located directly above the corresponding first frame body 11. The number of the submarine cable 100 is the same as that of the first frame body 11 or the box 12, that is, one box 12 corresponds to one first frame body 11, and one first frame body 11 corresponds to one submarine cable 100. Through such a layout, the submarine cables 100 can be effectively spaced, which is convenient for the subsequent management and maintenance of the submarine cables 100.

[0058] For example, the number of the box 12 can be 5-20, the number of the first frame body 11 can be 5-20, and the number of the box 12 is the same as that of the first frame body 11. For example, the number of the box 12 is 8, the number of the first frame body 11 is 8, and the number of the submarine cable 100 is 8; the number of the box 12 is 16, the number of the first frame body 11 is 16, and the number of the submarine cable 100 is 16.

[0059] In an embodiment provided by the present disclosure, the number of the first frame body 11 is different from that of the box 12, and one first frame body 11 corresponds to at least two boxes 12. The number of the submarine cable 100 is the same as that of the box 12, that is, one submarine cable 100 corresponds to one box 12.

[0060] For example, the number of the box 12 can be 5-20, the number of the first frame body 11 can be 5-20, and the number of the box 12 is different from that of the first frame body 11. For example, the number of the box 12 is 8, the number of the first frame body 11 is 4, and the number of the submarine cable 100 is 8; the number of the box 12 is 16, the number of the first frame body 11 is 8, and the number of the submarine cable 100 is 16.

[0061] For example, as shown in Figure 1 and Figure 2As shown, a first frame 11 corresponds to two boxes 12, and the two boxes 12 are simultaneously positioned directly above a first frame 11. Each box 12 has a first channel 101, and the first frame 11 has two spaced second channels 102. One second channel 102 is connected to one first channel 101. A submarine cable 100 extends into the box 12 through one second channel 102 and the corresponding first channel 101.

[0062] For example, each housing 12 has a first channel 101, and the first frame 11 has a second channel 102. The second channel 102 is connected to the first channel 101 of the two housings 12 respectively, and the submarine cable 100 extends into the housing 12 through the second channel 102 and the first channel 101.

[0063] In one embodiment provided in this disclosure, such as Figure 5 As shown, the device also includes a second frame 13, which is disposed on the side of the main body 10. A third channel 103 is provided on the top surface of the second frame 13. The submarine cable 100 is laid inside the second frame 13 and extends to the interior of the box 12 through the first channel 101 and the third channel 103.

[0064] The third channel 103 can be a through hole located on the top surface of the second frame 13, such as... Figure 6 or Figure 7 As shown, the projections of the third channel 103 and the first channel 101 on the horizontal plane at least partially overlap; or the third channel 103 may be a channel disposed in the top surface of the second frame 13, with one end of the channel facing the interior of the second frame 13 and the other end facing the first channel 101.

[0065] For example, when the housing 12 is positioned directly above the second frame 13, both the first channel 101 and the third channel 103 can be through-hole structures, which can reduce the extension length of the submarine cable 100 within the channels and improve the reliability of the submarine cable 100's extension within the channels. For example, when the housing 12 and the second frame 13 are misaligned, the third channel 103 can be a channel structure located within the top surface of the second frame 13 to ensure communication between the second frame 13 and the housing 12.

[0066] The number of the second frame body 13 and the first frame body 11 is the same as the number of the box body 12. The number of the first frame body 11 and the second frame body 13 is the same as the number of the submarine cable 100, and the first frame body 11 and the submarine cable 100 are one-to-one corresponding, and the second frame body 13 and the submarine cable 100 are one-to-one corresponding. Part of the submarine cable 100 can extend to the inside of the box body 12 through the second frame body 13, and part of the submarine cable 100 can extend to the inside of the box body 12 through the first frame body 11. Since the first frame body 11 and the second frame body 13 are located on different surfaces of the main body 10, the first frame body 11 or the second frame body 13 can be selected according to the length and structure of the submarine cable 100 and other parameters, as well as the structure and parameters of the subsequent land cable connected by the submarine cable 100, to meet the conversion and installation requirements of the submarine and land cables.

[0067] In the embodiments provided in the present disclosure, as shown in Figure 3 and Figure 4 The device further includes a fixing structure 20 arranged between the main body 10 and the coastline, and the fixing structure 20 includes a main body and a plurality of fixing channels 201 arranged along the first direction X, each fixing channel 201 penetrating the main body, and the submarine cable 100 extends to the first frame body 11 through the fixing channel 201, and the submarine cable 100 is fixed in the fixing channel 201.

[0068] For example, the first frame body 11, the box body 12, and the submarine cable 100 are in a one-to-one corresponding relationship, and the fixing channel 201 in the fixing structure 20 is arranged in a one-to-one corresponding relationship with the first frame body 11. For example, the box body 12 and the submarine cable 100 are in a one-to-one corresponding relationship, the first frame body 11 and the box body 12 are in a one-to-many relationship, and the fixing channel 201 and the box body 12 are in a one-to-one corresponding relationship. For example, the number of the box body 12 is the sum of the first frame body 11 and the second frame body 13, the box body 12 and the submarine cable 100 are in a one-to-one corresponding relationship, and the fixing channel 201 and the box body 12 are in a one-to-one corresponding relationship.

[0069] In each fixing channel 201, a fixing part can be arranged, for example, the fixing part can be a cable clamp, a cable support, a clamp, a buckle, a clasp, etc., which can be selected according to different needs.

[0070] In addition, in the present disclosure, a plurality of the above-mentioned offshore photovoltaic cable centralized laying devices can be arranged in front of the wharf to form an offshore photovoltaic cable centralized laying device cluster, each offshore photovoltaic cable centralized laying device can correspond to a sub-area of the offshore photovoltaic, by dividing the offshore photovoltaic into areas and correspondingly arranging the offshore photovoltaic cable centralized laying device, the reliability of the conversion of the submarine and land cables is further improved, the layout and arrangement of the device are facilitated, the running layout of the submarine cable 100 is more favorable, and the economy is improved.

[0071] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. An offshore photovoltaic cable mass-laying device, the offshore photovoltaic comprising a photovoltaic assembly, characterized in that, The device comprises: a main body part arranged at a wharf front edge and extending along a first direction which is an extension direction of a coastline; the main body part comprises at least one first frame and at least one box, the box is stacked on the first frame, the bottom surface of the box has a first channel, the top surface of the first frame has a second channel, a submarine cable is arranged inside the first frame and extends to the inside of the box through the second channel and the first channel, and a land cable is arranged inside the box; wherein the projection of the first channel and the second channel on a horizontal plane at least partially overlaps, and the submarine cable is used to connect the photovoltaic module; a conversion joint arranged inside the box, the land cable and the submarine cable are connected through the conversion joint.

2. Offshore photovoltaic cable mass-laying device according to claim 1, characterized in that, The number of the first frame and the box is the same, and the first frame and the box are arranged one by one.

3. Offshore photovoltaic cable mass-laying device according to claim 2, characterized in that, The number of the submarine cable and the first frame is the same, and the first frame and the submarine cable are arranged one by one.

4. The offshore photovoltaic cable pigging device according to claim 1, characterized in that, The device further comprises a second frame arranged on the side of the main body part; the sum of the number of the second frame and the first frame is the same as the number of the box, the top surface of the second frame is provided with a third channel, the submarine cable is arranged inside the second frame and extends to the inside of the box through the first channel and the third channel.

5. Offshore photovoltaic cable mass-laying device according to claim 4, characterized in that, The sum of the number of the first frame and the second frame is the same as the number of the submarine cable, the first frame and the submarine cable are arranged one by one, and the second frame and the submarine cable are arranged one by one.

6. The offshore photovoltaic cable pigging device according to claim 1, characterized in that, The number of the first frame and the box is different, and one first frame corresponds to at least two boxes.

7. Offshore photovoltaic cable mass-laying device according to claim 6, characterized in that, The number of the submarine cable and the box is the same, and the submarine cable and the box are arranged one by one.

8. The offshore photovoltaic cable pigging device according to claim 1, characterized in that, When the number of the box is multiple, multiple boxes are arranged side by side along the first direction, and adjacent two boxes are arranged in close contact with each other.

9. The offshore photovoltaic cable pigging device according to claim 1, characterized in that, When the number of the box is multiple, multiple boxes are arranged side by side along the first direction, and adjacent two boxes are arranged in close contact with each other.

10. Offshore photovoltaic cable mass-laying device according to any of claims 1-9, characterized in that, The device further comprises a fixing structure arranged between the main body part and the coastline, the fixing structure comprises a main body and a plurality of fixing channels arranged perpendicular to the first direction, each fixing channel penetrates the main body, the fixing channel and the submarine cable are arranged one by one, the submarine cable extends to the first frame through the fixing channel, and the submarine cable is fixed in the fixing channel.

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